If you could do it all over again, would you choose to get involved and change an event that originally had a pretty good outcome through your actions? Lin Yuan thought most people would say yes.
And so, in the world of MyGO!!!!!, on a timeline where CRYCHIC had yet to form, Lin Yuan opened his neighbor's door. Starting with meeting Shiina Taki, he set out to form MyGO!!!!!, helping Taki learn to treat Tomori, who was practically alien, with the same maturity and level-headedness he had. There was also Anon, who had no experience but loved being in the spotlight; Soyo, who just wanted a family; and a stray cat who wandered everywhere.
Because of Shiina Taki, who had stepped out of his imagination, and MyGO!!!!!, which had stepped out of his imagination, Lin Yuan went on to live a happy and fulfilling life (). Oh, and he also helped complete the stories of Saki and Mutsumi along the way.
Note: Most of this is everyday life. Everyday life, no harem. The protagonist regains his middle-school memories, arrives in Japan, and meets a band of girls.